contrib/workdir/git-new-workdir

   1 #!/bin/sh
   2
   3 usage () {
   4         echo "usage:" $@
   5         exit 127
   6 }
   7
   8 die () {
   9         echo $@
  10         exit 128
  11 }
  12
  13 if test $# -lt 2 || test $# -gt 3
  14 then
  15         usage "$0 <repository> <new_workdir> [<branch>]"
  16 fi
  17
  18 orig_git=$1
  19 new_workdir=$2
  20 branch=$3
  21
  22 # want to make sure that what is pointed to has a .git directory ...
  23 test -d "$orig_git/.git" || die "\"$orig_git\" is not a git repository!"
  24
  25 # don't link to a workdir
  26 if test -L "$orig_git/.git/config"
  27 then
  28         die "\"$orig_git\" is a working directory only, please specify" \
  29                 "a complete repository."
  30 fi
  31
  32 # make sure the the links use full paths
  33 orig_git=$(cd "$orig_git"; pwd)
  34
  35 # create the workdir
  36 mkdir -p "$new_workdir/.git" || die "unable to create \"$new_workdir\"!"
  37
  38 # create the links to the original repo.  explictly exclude index, HEAD and
  39 # logs/HEAD from the list since they are purely related to the current working
  40 # directory, and should not be shared.
  41 for x in config refs logs/refs objects info hooks packed-refs remotes rr-cache
  42 do
  43         case $x in
  44         */*)
  45                 mkdir -p "$(dirname "$new_workdir/.git/$x")"
  46                 ;;
  47         esac
  48         ln -s "$orig_git/.git/$x" "$new_workdir/.git/$x"
  49 done
  50
  51 # now setup the workdir
  52 cd "$new_workdir"
  53 # copy the HEAD from the original repository as a default branch
  54 cp "$orig_git/.git/HEAD" .git/HEAD
  55 # checkout the branch (either the same as HEAD from the original repository, or
  56 # the one that was asked for)
  57 git checkout -f $branch